Appeal No. 96-1855
Application 07/953,807
DECISION ON APPEAL
This is a decision on appeal from the final
rejection of claims 1 through 8, and 10 through 17. Claim 18
has been allowed and claim 9 has been canceled.
The invention relates to a liquid-crystal display
system in which pixel units are displayed as ON data (white),
OFF data (black) or halftone data (ON data and OFF data
alternately in successive frames) in a manner to reduce
flickering.
In particular, prior art Figure 64 shows a display
in which the hatched lines (lines 1 and 3) represent a
halftone data display, i.e. a gray tone halfway between white
(ON) and black (OFF). The white lines (lines 2 and 4)
represent a white data display (ON). As shown in prior art
Figure 65, the halftone data display is obtained by
generating OFF data and ON data alternately in successive
frames, i.e. odd and even frames, as halftone data. The
halftone data for lines 1 and 3 changes from OFF data in the
odd frames to ON data in the even frames. Flickering appears
in the display of prior art Figure 64 since the frames making
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